APA (7th ed.) Citation

United States. Weather Bureau. Daily synoptic series, historical weather maps. U.S. Weather Bureau.

Chicago Style (17th ed.) Citation

United States. Weather Bureau. Daily Synoptic Series, Historical Weather Maps. Washington, D.C.: U.S. Weather Bureau.

MLA (8th ed.) Citation

United States. Weather Bureau. Daily Synoptic Series, Historical Weather Maps. U.S. Weather Bureau.

Warning: These citations may not always be 100% accurate.